An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
magnesiumoxide, etc ; ceramics; dielectric permittivity; molecular dynamics; nanocomposites; silver; Show all 6 Subjects
Abstract:
... Ceramic materials such as metal oxides, mixed metal oxides and silicates, constitute a broadly-used, high-performance technology for electronic insulators. The introduction of metal cluster dopants and molecular-scale inclusions in a dielectric matrix provides an opportunity for manufacturing new high-κ solid-state dielectrics with tunable field–response properties. The quantum properties of these ...
magnesiumoxide, etc ; acid rain; antimony; calcium oxide; corrosion; environmental management; pH; slags; Show all 8 Subjects
Abstract:
... This study investigated the long-term leachability of antimony (Sb) in a smelting residue (39519 mg/kg) solidified/stabilized by reactive magnesia (MgO). Different dosages of MgO (0% as control, 2%, 5%, and 10% on a dry basis) were compared, and the long-term performance was evaluated by an accelerated exposure test consist of 20 consecutive leaching steps with simulated strong acid rain (SAR, HNO ...
magnesiumoxide, etc ; World Health Organization; aesthetics; calcite; desalination; divalent metals; human health; magnesium; water; Show all 9 Subjects
Abstract:
... The post-treatment of soft and desalinated waters is an integral step in the production of quality drinking water. Remineralization is therefore often essential in order to stabilize the effluent for distribution and to attain mineral levels that fulfill aesthetic and health goals. According to the World Health Organization, magnesium (Mg²⁺) is a nutrient essential to human health. This review sum ...
magnesiumoxide, etc ; carbon; carbon nanotubes; catalysts; cobalt; feedstocks; pollution; polyethylene; polypropylenes; porosity; vapors; wastes; Show all 12 Subjects
Abstract:
... Recycling of plastic waste is an effective way that could prevent our planet from drowning in plastic pollution. The work presents chemical vapor deposition (CVD) growth of single-walled carbon nanotubes (SWNTs) from plastic polymers, including low-density polyethylene (LDPE) and polypropylene (PP). The successful synthesis of SWNTs from the polymers is attributed to the robustness of the designed ...
magnesiumoxide, etc ; absorption; carbon; carbon nanotubes; catalysts; density functional theory; dissociation; optical isomerism; ruthenium; vapors; Show all 10 Subjects
Abstract:
... The past two decades witnessed the thriving of non-conventional nanoparticles in catalytic synthesis of single-walled carbon nanotubes (SWNTs). However, most of the SWNTs are limited to growing on a flat surface which usually suffers low output, thus making the evaluation of SWNT chirality distribution challenging. In this work, we report a solid magnesia (MgO) supported ruthenium (Ru) catalyst fo ...
magnesiumoxide, etc ; adsorption; ambient temperature; antibiotic resistance; antibiotics; ciprofloxacin; electrostatic interactions; magnesium hydroxide; nanorods; pH; river water; Show all 11 Subjects
Abstract:
... The antibiotic ciprofloxacin (CIP) is recognized as a contaminant of emerging concern because its persistent occurrence in water accelerates the growth of deadly antimicrobial resistance genes (AMRs). For the first time, the conventional precipitation technique was thermally modified to produce hybrid magnesium hydroxide/magnesium oxide nanorods [Mg(OH)₂/MgO] for efficient and rapid adsorption of ...
... Fossil fuel burning is the exclusive of key causes for greenhouse fume Carbon dioxide (CO₂). Magnesium nanocomposites synthesized in combination with graphene were characterized and their performance in adsorbing CO₂ is validated. The novelty of this work is the use of magnesium oxide decked MG to capture CO₂. The magnesium nanocomposites decked with multilayer graphene (MG) were prepared using a ...
magnesiumoxide, etc ; administrative management; aluminum; aluminum oxide; bentonite; carbon; combustion; energy conversion; magnesium; petroleum; solar energy; temperature; transportation; Show all 13 Subjects
Abstract:
... The need for sustainable zero-carbon fuels to substitute the conventional fossil fuels in the transport field becomes unavoidable to overcome the depletion of petroleum reserves and global warming. Metal fuels are promising energy-carrying materials that can be regenerated through the carbothermal reduction of their oxide combustion products. Their use is economically beneficial and environmental- ...
magnesiumoxide, etc ; energy; green chemistry; industry; Show all 4 Subjects
Abstract:
... Green synthesis approaches are gaining the attention of researchers and they follow a less hazardous process to obtain nanoparticles. Green synthetic methods are currently used in industry than other physicochemical methods. The magnesium oxide (MgO) nanoparticles have been effectively produced by green synthesis which is environmental friendly, non-toxic with greater stability and has broad range ...
magnesiumoxide, etc ; dysphagia; pH; solvents; texture; thickeners; Show all 6 Subjects
Abstract:
... Food thickening agents help patients with dysphagia to eat, drink, and take medications. Taking medications with food thickeners has been reported to cause problems such as reduction of pharmacological effects through the delayed disintegration or non‐disintegration of tablets. We previously reported that long immersion periods in food thickeners causes delayed disintegration and non‐disintegratio ...
Sandip S. Bista; Deng-Bing Li; Rasha A. Awni; Zhaoning Song; Kamala K. Subedi; Niraj Shrestha; Suman Rijal; Sabin Neupane; Corey R. Grice; Adam B Phillips; Randy J. Ellingson; Michael Heben; Jian V. Li; Yanfa Yan
magnesiumoxide, etc ; cadmium sulfide; chlorides; solar cells; zinc; Show all 5 Subjects
Abstract:
... Copper (Cu) incorporation is a key process for fabricating efficient CdTe-based thin-film solar cells and has been used in CdTe-based solar cell module manufacturing. Here, we investigate the effects of different Cu precursors on the performance of CdTe-based thin-film solar cells by incorporating Cu using a metallic Cu source (evaporated Cu) and ionic Cu sources (solution-processed cuprous chlori ...
... During the current study, the effects of magnesium oxide nanoparticles (5 mmol/L) were observed on the growth and mineral nutrients of Daucus carota under lead (Pb) stress. The results demonstrated that Pb stress decreased the growth and photosynthetic rate of D. carota plants. Furthermore, Pb stressed plants showed decreased uptake of mineral nutrients including Zn, Na, Fe, K, Ca, Mg, K, and Cu. ...
magnesiumoxide, etc ; cathodes; electrochemistry; electrolytes; iron phosphates; lithium; Show all 6 Subjects
Abstract:
... Three-dimensional (3D) printing of Li-ion batteries with unconventional 3D electrodes has attracted considerable attention in recent years. However, fabricating 3D electrodes with high specific capacity, high areal capacity, ultralong cycling stability, and improved rate performance remains a challenge to date. Novel 3D grid-patterned LiFePO₄@MgO composite electrodes with thicknesses of 143, 306, ...
magnesiumoxide, etc ; carbon dioxide; carbon footprint; carbonation; cement; industry; Show all 6 Subjects
Abstract:
... The development of alternative binders to Portland Cement has become a critical factor in decreasing the Portland cement industry’s carbon footprint, which nowadays represents about 7% of CO₂ emissions worldwide. Thereby the seek for the development of alternatives binders led to a recent and growing interest in carbonate-based binders due to their ability to capture and store CO₂ into their cemen ...
magnesiumoxide, etc ; ambient temperature; catalysts; feedstocks; green chemistry; solvents; Show all 6 Subjects
Abstract:
... Using renewable feedstocks to access highly functionalized molecules in a concise manner is a promising approach to sustainable syntheses. Previous studies used malononitrile to convert simple sugars to polyhydroxylalkyl aminofurans in the presence of various catalysts. Herein, a chemodivergent method is disclosed for the reaction of the same unprotected sugars with malononitrile to instead form b ...
magnesiumoxide, etc ; Escherichia coli; antibacterial properties; growth curves; ionization; magnesite; magnesium; Show all 7 Subjects
Abstract:
... MgO nanoparticles were obtained by liquid-phase precipitation of three Mg sources produced from magnesite in this study. The influence of anionic groups in solution on the physical properties and bacterial inhibition of nanomaterials during their formation is discussed. The analysis demonstrates that the process of MgO and Mg(OH)₂ precursor generation exhibits a visible anionic effect. As the elec ...
magnesiumoxide, etc ; antibiotics; biochar; hydrolysis; magnesium ammonium phosphate; sulfamethoxazole; urine; wastewater; Show all 8 Subjects
Abstract:
... Phosphate recovery from wastewater is regarded as promising strategy to achieve sustainable supply of non-renewable natural resources. In this study, a novel technique for spherical materials preparation was developed to achieve both phosphate recovery and antibiotic removal from urine. Phosphate removal and sulfamethoxazole (SMX) degradation performance of the synthesized spherical materials was ...
... The objective of this study was to evaluate the effects of replacing magnesium oxide (MgO) with calcium-magnesium carbonate [CaMg(CO₃)₂] on ruminal fermentation with or without the addition of sodium bicarbonate (NaHCO₃). Eight fermentors of a dual-flow continuous-culture system were distributed in a replicated (2) 4 × 4 Latin square design in a 2 × 2 factorial arrangement of treatments (magnesium ...
... In this study, the wheat gluten film was prepared. Heracleum persicum essence, magnesium oxide nanoparticles and polypyrrole were used to modify the structure of the wheat gluten film. Physicochemical properties of the prepared films such as thickness, solubility, moisture absorption ability, antioxidant properties, and electrical conductivity of the films were investigated. Also, the mechanical, ...
magnesiumoxide, etc ; X-ray diffraction; heat; lithium; lithium chloride; magnesium hydroxide; temperature; Show all 7 Subjects
Abstract:
... The magnesium hydroxide/magnesium oxide (Mg(OH)₂/MgO) system is a promising chemical heat storage system that utilizes unused heat at the temperature range of 200–500 °C. We have previously reported that the addition of lithium chloride (LiCl) and/or lithium hydroxide (LiOH) promotes the dehydration of Mg(OH)₂. The results revealed that LiOH primarily catalyzed the dehydration of the surface of Mg ...